“Part of a musical estate this is a clean m-500 synth. Unit powers on and lights up as it should. No other testing has been performed due to not possessing the necessary equiptment to test the unit so unit is being sold as is/untested ” Link

“This keyboard is in good condition and works well. A previous owner carved their name in the bottom, but there aren’t any serious cosmetic flaws. This is the more desirable SP version, with the headphone jack and built-in speaker. A hardshell case is included, also in good condition. Sold as is, no returns.” Link

“Korg M500 SP in very good condition for it’s age and in perfect working order. Recently serviced so should be good to go for many years to come.

There’s a few minor marks on the case as you’d expect for something of this age but as you can see from the photos it still looks great. It’s missing the little slider cap from the top of the modulation depth slider but the slider works as it should, you could probably pick up a replacement on Ebay if you keep your eyes open.

This is the rarer “SP” model, referring to the built in speaker. You also have line out and headphone out on the back.

Sounds superb and great fun, you can get some seriously cool sounds out of this, thunderous basses and screaming leads. Very similar sounding to the Korg MS10 in my opinion.” Link

“In good working order,minor age related wear and tear (this is nearly 40 years old and looks good for its age)one slider knob is missing,one of the wooden panels on the back is a little loose(not broken)i have left as is.All keys are in excellent working order,one of controls on the panel could do with its connections cleaning(it does work but is not 100%)the speakers work great and dish out the sounds you would expect,in all-round very good working order,its performance may be improved further with a professional clean.” Link

” Up for auction is my 1977 Korg M-500 Micro-Preset keyboard. I am not the original owner and there are a few defects that make it not perfect. First, the intonation can be off sometimes. I think this can be fixed, but I don’t know how. I have heard it has to do with the oscillator regulates voltage to each key. It is noticeable when performing a leap of an octave in the middle of the keyboard. It doesn’t occur as much on the lower keys (which was fine by me because I mostly liked the bass sounds). Next, a side panel is missing. I don’t know how it went missing but I didn’t fix it because it never bothered me. Finally, all the voice selectors work except for “voice.” No sound comes out when that button is depressed. Otherwise, all the other voices and filters work great. I recently installed a new longer power cable and cleaned the potentiometers with contact cleaner. ” Link

“OLD KORG MICRO PRESET SYnth IN VERY GOOD CONDITION AND PERFECT WORKING ORDER.
ALL THE KNOBS AND SWITCHES WORK AS THEY SHOULD AND NOne are missing not only does it work perfect but the cosmetic condition is near perfect as well” Link

“OLD KORG MICRO PRESET SYnth IN VERY GOOD CONDITION AND PERFECT WORKING ORDER.
ALL THE KNOBS AND SWITCHES WORK AS THEY SHOULD AND NOne are missing not only does it work perfect but the cosmetic condition is near perfect as well” Link

” Late 70s model, in good condition for an oldie. The faults are: Knobs missing from the traveller and modulation depth sliders, but this doesn’t effect their operation. The ‘momentary portamento’ feature can’t be used as the switch has broken off.

This synth hasn’t been in use for some time- it’s been stored indoors in warm, dry conditions (not in a loft or garage). My son has given it a thorough test drive prior to listing, and the only problem he’s found is that the ‘synthe 2′ button doesn’t always work on the ’32’ setting, though it’s fine on the others.” Link

“Korg Micro Preset M-500 from 1977. This is almost mint. Looks great and sounds great. Similar sound to Korg 700 and MS 10 series. You can mix synth sounds (2) with presets for a 2 oscillator sound. Easy to use and sound great especially through reverb/delay (not included) No international bidders please, Continental USA only (keep shipping costs down). Excellent antique synth for your collection.” Link

“This very collectable analog synthesizer comes with all its original parts. Including: the box, the music stand and its original patch sheets. It has a standard UK mains plug attached. It is in good condition apart from a few very small signs of cosmetic wear and tear and is in full working order.” Link

” All keys, knobs, and switches work. This unit has been converted to 120 volts AC (United States standard) and the built-in cord has been replaced with a socket for standard AC power cords (included). Traveller slider cap is missing silver insert. 2 screws are missing from the top. Vinyl wood cover is intact but not perfect. See pictures for more detail.” Link

” This Korg Micro Preset M-500 vintage Analog mono Synthesizer made in 1978 has been kept in near mint condition. I babied it as you can see in the photos it is clean inside and out. Everything works. You can combine 2 or more presets to create interesting and beautiful sounds. This synth’s oscillator and filter sounds very similar to the famous Korg MS 10 synthesizer. The repeat control can give you gated bass lines. Filter sweeps no problem using the traveler slider. Vibrato pitch LFO and filter LFO modulation also possible. This synth is awesome and simple to operate and play. Portamento control with certain presets can make theremin type sounds that are eerie and early sci-fi sounding. Combine this with a delay you are in analog synth heaven !” Link

” Great little gem. You either know what it is, or just youtube it to find out. Only blemish is the smearing of the overlay, as seen in the pic (cosmetic), and the broken key, which can be had from syntaur dot com for seventeen dollars. Key still plays. ” Link

“Has been recently tested by an electrician who specializes in vintage synths. This is the most soulful and beautiful synth I have ever had the pleasure to play. It makes the kind of deep, warm sounds that you only get from a classic vintage synthesizer. Selling for financial reasons only.” Link

“Offered for sale is this Korg M-500 SP Micro-Preset in superb cosmetic condition and excellent working order.

It is in very clean condition for a synth that’s over 30 years old (they were made from 1977-80): the ‘wooden’ casing is in good order overall and all pots/sliders work as they should (please see detailed photos below). The only blemishes are where the ‘wood’ has rippled slightly around the music stand (see detailed photos below).

There are no known faults with this synth – it is working 100% as it should.
In use, sliders, pots and buttons move smoothly and noiselessly.
(Please note: it is always possible with vintage equipment that some crackly pots/sliders may develop over time when equipment has not been used – even during shipping – this can usually be easily rectified either by use or with a bit of switch-cleaning spray).

This is the more sought-after version of the Micro-Preset with the built-in speaker underneath.” Link

“Really fun, basic little synth. Not quite 100% cosmetically as i hope you can see from the pictures. 1 Key is cracked but still works. It was missing slider caps when i got it so i added some non original ones but couldnt find one to fit the portamento control which i can still operate easily enough. There is also a crack running halfway along the back of the stylish wooden veneer on top which i couldn’t really get in a picture I’m afraid and some chips/scuffs all over. Not bad considering it is almost 40 years old! The good news is, operationally it is 100%! Zero scratchy pots/dodgy keys etc meaning none of these issues have stopped me from enjoying the synth which, although simple, produces some truly classic vintage Korg tones. I especially love the amazing bass sounds. ” Link

“Up for sale is KORG M-500SP Micro-Preset vintage analog synthesizer. One of the most earliest and rarest synths Korg produced in the ’70s, M-500SP is M-500 with built-in speaker on the bottom of the unit.

The unit appears to be working fine, all the keys and sliders and buttons worked when I tested. Maybe a slight noise on some of the knobs, which could do with some adjusting/servicing. The speaker is sounding fine too. It seems like the Momentary / Portamento On switch has been changed somehow by the previous owner, which I couldn’t really tell if it has any effect or not.

Cosmetically the unit is in nice condition as you can see. There are some minor wear and marks here and there, with one of the plastic part missing on the music stand whole, but nothing too major I suppose. I’m including plenty of pictures so you can see exactly how it looks.

“Vintage Korg M 500 Micro-Preset Synthesizer from the late 1970’s Good working order and clean condition. Been in the loft for a few years so the input jacks are a bit rusty looking but both work fine. It seems that when set to wood the Recorder, Clarinet and Flute setting don’t sound. Also has a fag burn on the wood effect finish and some stains on the last key. See pictures.

Overall this is very clean and tidy, and I’d say was a good example of this rare synth.” Link

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